diff --git a/scapy/config.py b/scapy/config.py
index 53f44a156..568dada8a 100755
--- a/scapy/config.py
+++ b/scapy/config.py
@@ -172,6 +172,8 @@ class CacheInstance(dict):
         self.timeout = timeout
         self.name = name
         self._timetable = {}
+    def flush(self):
+        self.__init__(name=self.name, timeout=self.timeout)
     def __getitem__(self, item):
         val = dict.__getitem__(self,item)
         if self.timeout is not None:
diff --git a/scapy/route6.py b/scapy/route6.py
index 82c6f8f35..e00edfc47 100644
--- a/scapy/route6.py
+++ b/scapy/route6.py
@@ -128,11 +128,11 @@ class Route6:
             if iface != iff:
                 continue
             if gw == '::':
-                self.routes[i] = (the_net,the_plen,gw,iface,the_addr)
+                self.routes[i] = (the_net,the_plen,gw,iface,[the_addr])
             else:
-                self.routes[i] = (net,the_plen,gw,iface,the_addr)
+                self.routes[i] = (net,plen,gw,iface,[the_addr])
         self.invalidate_cache()
-        ip6_neigh_cache.flush()
+        conf.netcache.in6_neighbor.flush()
 
     def ifdel(self, iff):
         """ removes all route entries that uses 'iff' interface. """
diff --git a/test/regression.uts b/test/regression.uts
index ae2954d38..de2e9ee10 100644
--- a/test/regression.uts
+++ b/test/regression.uts
@@ -67,6 +67,11 @@ if len(routes6):
 else:
     True
 
+= Test ifchange()
+conf.route6.ifchange(LOOPBACK_NAME, "::1/128")
+True
+
+
 ############
 ############
 + Basic tests